def render(self, form, form_style, context):
     html = ""
     for field in self.fields:
         html += (
             '<div class="diff_field" rel="tooltip"><textarea class="org-data" style="display:none;">%s</textarea>%s</div>'
             % (
                 _("Current: %s") % self.attrs.pop("orgdata", ""),
                 render_field(field, form, form_style, context, template=self.template, attrs=self.attrs),
             )
         )
     return html

 def render(self, form, form_style, context):
     html = ''
     instance = form.instance
     if not instance.pk:
         return super(InlineDiffField, self).render(form, form_style, context)
         
     initial = form.initial
     opts = instance._meta
     detail = form.detail
     for field in self.fields:
         f = opts.get_field(field)
         f_html = render_field(field, form, form_style, context, template=self.template, attrs=self.attrs)
         if f.value_from_object(instance) != initial.get(field, None):
             current_val = detail.get_field_result(f.name).val
             html += ('<div class="diff_field" rel="tooltip"><textarea class="org-data" style="display:none;">%s</textarea>%s</div>' \
                 % (_(u'Current: %s') % current_val, f_html))
         else:
             html += f_html
     return html

 def render(self, form, form_style, context, template_pack=TEMPLATE_PACK, **kwargs):
     html = ''
     for field in self.fields:
         html += ('<div class="diff_field" rel="tooltip"><textarea class="org-data" style="display:none;">%s</textarea>%s</div>' %
                 (_('Current: %s') % self.attrs.pop('orgdata', ''), render_field(field, form, form_style, context, template_pack=template_pack, attrs=self.attrs)))
     return html